Pump and operating mechanism



G. W. JOHNSON.

PUMP AND OPERATING MECHANISM.

APPLICATION HLED AUG-I9, 1-919.

Patented Jan. 11,1921.

6 SHEETSSHEEI G W cfa/maan. fi\

.G. W. JOHNSON.

PUMP AND OPERATING MECHANISM.

APPLICATION FILED AUG. I9. 1919.

Patented Jan. 11, 1921.

6 SHEETSSHEET 2- (i Wf Johnson.

G. W. JOHNSON.

PUMP AND OPERATING MECHANISM.

APPLICATION FILED AUG. 19, 1919.

1,364,995, I Patented Janlll, 1921.

6 SHEETS-SHEET 3.

[nae-n60)? G. W (fafinaan.

6-. W. J-VOHNSDN PUMP AND OPERATING MECHANISM.

APPLICATION FILED AUG. 19. 1919.

1,364,995. Patented Jan. 11, 1921.

6 SHEETS-SHEET 4.

G. W. JOHNSON. "PUMP AND OPERATING MECHANISM.

APPLICATION M 9 m9. Patented Jail. 11, 1921- r 6 SHEETS-SHEET 5.

J 2 xi W C/bhnaan G. W. JOHNSON. I

' PUMP AND OPERATING MECHANISM. v

APPLICATION FILED AUG. I9, I919. Q 1 364,995, Patented Jan. 11, 1921.

6 EEEEEEEEEEEE 6- Inveniar UNITEDSTATES-PATENT OFFICE.

GUSTAV W. JOHNSON, F CHIPPEWA -FAL LS, WISCONSIN, ASSIGNO R TO CHIPPEWA FOUNDRY AND MACHINE COMPANY, 'OF CHIPPEWA FALLS, WISCONSIN, A COR- roRA'rIon or WISCONSIN.

rump AND OPERATING mnoHANIsir- Specification of Letters Patent.

Patented Jan. 11,1921.

Application filed August 19, 1919. Serial 110,318,460.-

' To all whom it may concern.

Beit known that I, GUSTAV J oHNson, a. citizen of the United States, residing at Chippewa Falls, in the county of Chippewa and State of Wisconsin, have invented certain new and useful Improvements in Pumps J the eccentric the collar being so constructed that wear 5 may be taken up. Another object of the inas will enable others which it appertains to make and use the and Operating Mechanisms; and I do' hereby declare the following to be a full, clear, and exact description of the invention, such skilled in the art to same. w

: This invention relates to an improved pump and operating mechanism :and the principal object of the invention is to provide a pump having a plurality of pistons mounted in a pump cylinder and having independent operating rods and to further provide improved operating mechanism for the pump whereby the pump rods may be moved in opposite directions. .Anotherobject of the invention is to provide this pump operating mechanism with type of eccentric gearing for motion from the driving shaft, to the pump rods, .the eccentric gears being so mounted that they will at all times remain in mesh transmitting wvith the gears f of the driving shaft. An

other object of the invention is to provide an improved type of'collar for supporting gears from the drivingpshaft,

vent-ion is to provide an improved ty e of cross head for connecting the pump 'ods with the pitman rod of the eccentric gears, the cross heads being so constructed and mounted that they will reciprocate freely without binding. Another object of the invention. is to provide an improved type of v packing gland at the head of the pump cylinder and prevent leakage of water around the pump rods. Another object of the invention is to provide an improved type of .piston for the pump, the piston being so constructed that water may pass through the samewhen the piston ismoving downwardly and then carriedupwardly with the piston as the piston moves upwardly. "Another object of the invention is to provide an 1mproved type of valve for permitting water to pass freely through the pistoibwhen the an improved piston is moving downwardly and preventing passage of water through the piston when the piston is moving upwardly. Another object of the invention is to so construct this pump'and actuating mechanism that a single set of eccentric gearing is suflicient for each piston. Another object of the invention is to so construct this pump and operating mechanism that it will be comparatively simple in construction and comprise as few number of parts which will be strong and durableand not liable to easily break or get out of order. p This invention is illustrated in the accompanying drawings, wherein:

Figure l is a front elevation of the entire pump and actuating mechanism, Fig. 2fis a front elevation of the superstructure or actuating mechanism for the P p,

Fig. 3 is a side elevation mechanism for the pump,

Fig. 4 is a vertical sectional view taken along the line 4:-4: of Fig. 2,

Fig. 5 is a View of" one ofthe'collars for the eccentric gears,

Fig. 6 is a side elevation of the pump cylinder, the cylinder being partially broken away to show thepistons positioned therein,

Fig. 7 is a side elevation of one of the pistons, v

Fig. 8 is a vertical sectional view through one of "the pistons,

-Fig. 9 is a perspective view of the valve usedin connection with the piston,

Fig. 10 vis a perspective view of one of the cross heads connecting the pump rods with thepitman rod's extending from the/ C611,

pump isprovided with a pump cyl-' of the actuating positioned in the pump casing or be reciprocrted and moved rections. This pump and operating mechanism will be suitably mounted above a well with the frame 2 positioned above the upper end. of the well and the cylinder extending down into the well.

The pump cylinder or casing is provided with a barrel 3 which is open at its upper and lower ends and is provided at its upper end with a head 4 from the side of which extends a neck 5 for connection with a pipe leading to a storage tank into which the water pumped will be stored. This head 4 is connected with the base of the frame 2 by means of suitable bolts and will register with an opening formed in the base. This frame 2 is provided with side bars 6 which extend upwardly from the base 7 and are connected to provide hearings in which a shaft 8 will be mounted. A bracing yoke 9 is positioned intermediate the height of the frame to brace the side bars and overcome any tendency toward vibration which might be caused when the pump is in operation.

The driving shaft 9 for the operating mechanism is rotatably mounted in bearings 10 upon the side bars and carries a pulley wheel 11 at one end about which a belt may be passed from a suitable source of power and is provided at its opposite end with a fly wheel 12. Relatively small gears 13 are rigidly secured upon the shaft 9 'between the side bars and are protected by suitable shields or guards, 14. These relatively small gears 13 mesh with the relatively large eccentric gears 15 which are mounted upon the shafts 16 of the hanger brackets 17 mounted upon the shaft 8. These eccentric gears have their hubs extended outwardly as clearly shown in Fig. 2 and carry collars 19 which are formed in sections 19 and 19 as shown in Fig. 5 connected by, the belts.

or other adjustable fasteners 20. Spacing strips 21 may be positioned between the'adjoining portions of the sections so that the collars may be adjusted to the proper fit about the extensions of the gear hubs and ing strip 25 will be provided between the bearing block 24 and the outer end of the neck 22 thus permitting proper adjustment to cause the collars to operate properly when themachine is in operation.

Within the lower portion of the frame there has been provided rods 26 and 27* which extend upwardly from the center plate 28 of the base 7 to the brace on bridge 9 and provide means for slidably mounting the cross heads 29 and 30. These cross heads will be each formed from sections 31 and 32 which are secured together by bolts 33 thereby coupling the sections .of the cross heads about their respective guide rods so that the cross headswill be slidabl mount- ,ed upon the guide rods. Stub sha ts 34 ex tend from the cross heads and are engaged by the bearing heads at the lower ends of the pitman rods or shafts 35 which extend upwardly through the spacing 'yoke 9, as clearly shown in Fig. 2, and are provided at their upper ends with bearing heads or collars 36 fastened about the stub shaft 37 of the eccentric gears 15. It will thus be seen that as the driving shaft 9 is rotated, the cross heads will be vertically reciprocated and it will be further seen that since the eccentric gears are set withthe stub shafts 'thereof upon opposite sides of the central point, the cross head 30 will be caused to move upwardly while the cross head 29 is moving downwardly and, therefore, the pistons of the pump, to be hereinafter described, will be moved in the pump cylinder in opposite directions.

- Within the barrel or cylinder 3 of the pump casing 1 there is provided the upper and lower pistons indicated in general by the numerals 38 and 39 and connected with the lower ends of the pump rods 40 and 41, the pump rod 40 being tubular and receiving the pum rod 41 which extends upwardly into t e base portion of the frame and is connected with the arms 42 of the cross head 30. The tubular pump rod-has its upper end connected with a cross plate or connecting head 43 through the medium of a nipple 44, the plate 43 being positio within. the head 4 of the ppmp casingand connected with the lower ends of the connecting rods 45 which extend upwardly and have their upper ends connected with the arms 46 of thecross head 29 upon opposite sides of the rod 41 and arms 42. The pump rod 41 and connect ing rods 45 extend through the stufling boxes 47 of the packing gland box 48 secured to the center plate of the base 7 and it will be readily seen that this packing gland box forms a closure for the upper end of the head 4 as well as providing means for preventing leakage of water about the rods 41 and 45 when the packing glands 49 are ti htened to com- 51 may pass thus permitting securing nuts carried by the'pins to engage the side portions of the plate when the securing nuts are tightened.

the tubular body 52 and are held in spacedv The pistons or pump heads which are mounted in the cylinder or barrel 3 are similar in construction and therefore a de scription of one will sufiice for both. This piston is provided with a hollow tubular body 52 which is provided at its upper end with an abutment collar 53 andis connected with the neck 54 by a web 55 positioned within the tubular body as shown in Fig.-

8. This neck 54 is provided with anoutstanding .annularflange 56 forming an abutment collar forlimiting downward movement ofa valve to be hereinafter described and in order to provide a valve seat 57 the upper portion of the collar 53 has been beveled. Cups 58 which are formed of leather or other suitable material areplaced upon out through the spaces between the webs 55, the rush of water through these heads serving to unseat the valve which is slidably mounted upon the neck and. normally seats upon the valve seat. This valve 61 fits upon the valve seat 57 and is cut interiorly to conform "to the valve seat and carsired'movement can be imparted to ries arms 62 which lead from the collar 63 slidably mounted-upon the neck'54. It should be noted that the abutment collar 56 is cut to provide a continuation of the valve seat 57, as shown at 57, and that the valve will seat firmly upon this valve 57 as well as upon the valve seat 57 thereby completely closing the spaces betweenthe webs 55 and preventing water from passing down i through the piston-when the piston is moving upwardly. 7 Suitable couplings 64 will be provided to connectthe pump piston or head with the pump rods. When it is necessary to make repairs or insert a new suction pump it is simply necessary to remove the securihg ring ornut 60 and the pump can then be readily removed. .If it is detending down sired to grind the valve or valve seat, the piston can be disconnected from the pump rod. i v

When in use this pump will be setup over the well with the pump cylinder exinto the well and havingits lower end connected with a pipe leadopen K mg down into the well below the water line. A belt from a motor will'be passed around the pulley wheel 11 and when the motor is started the driving shaft 9 will be rotated and rotary movement transmitted to the eccentric gears 15 through the medium of the smaller gears 13 carriedby the the driving shafts,

driving shaft. The eccentric gears will be retained in mesh with the smaller gears through the medium of the collars 19 and since these eccentric gears are supported by the hanger bearing brackets 17, as shown, suificient play will be permitted to prevent binding when the pump is in operation. As

the eccentric gears rotate the pitman shafts 35, will be reciprocated vertically and vertical reciprocating movement thus. imparted to the cross heads 29 and 30, the cross head 29 moving upwardly while the cross head 30 is moving downwardly. A similar movement will be impartedto the pump rods 1 40 and 41 and it will thus be seen that the pistons will reciprocate in the cylinder 3 in oppositedirections. Therefore as the lower piston moves downwardly water will pass upwardly through this piston and as the lower piston moves upwardly the valve will close and this water above the lower piston will be drawn upwardly and will pass through the upper piston into the upper portion of the cylinder. As the lower piston moves downwardly to obtain a fresh supply of water, the upper piston will move upwardly and its valve will close and the water in the cylinder above the upper piston will be forced upwardly and out through the neck 5 into the conduit pipe which will lead to a tank orto any point where it is A very efficient pump has therefore been provided desired to have the water delivered.

the dethe two pistons with a minimum amount of actuating mechanism. There has. further been of the double-action type in which provided a pump which is very simpgflin construction and which is .not liable to sily getout of order. What is claimed is:

p 1. pump andoperating mechanism comprising a frame, a pumpcylinder positioned beneath the frame, connected with the frame, a supporting a driving shaft rotatably shaft carried by the frame, hanger bearing brackets carried by the supporting shaft, eccentric gears rotatably supported by said hanger bearing brackets, gears carried by collars fitting loosely about the hubs of the eccentric gears, necks extending from the collars, bearings carried bythe necks and fitting about the driving slidably mounted i'n'the pump cylinder, and

lars loosely fitting about the hubs of the eccentric gears, necks extending from the collars, bearings adjustably connected with the necks and fitting about the driving shaft, spacing means between the necks and bearings, cross heads slidably mounted in the means carried by the frame for imparting reciprocating movement to the cross heads.

6. In a pump andactuating mechanism including a frame, cross heads slidably mounted in the frame for.vertical reciproframe for vertical reciprocating movement,

and pitman rods connected with the cross heads and eccentrically connected with the eccentric gears.

3. In a pump and actuating element in cluding a frame, a driving shaft rotatably connected with the frame, eccentric gears rotatably suspended in the frame for eccentric rotary movement, gears carried by the v driving shaft and meshing with the eccentric gears, collars loosely fitting about the hubs of the eccentric gears, necks extending from the collars, pins. extending from the necks, adjustable bearings fitting upon the pins and about the driving shaft, spacing elements positioned between the bearings and the necks, pump actuating cross heads slidably mounted in the frame, and pitman rods having their lower ends loosely c0nnected with the cross heads and their upper ends eccentrically connected with the eccentricgears.

4. In a pump and actuating element including a frame, supporting rods extending vertically in the frame, cross heads slidably mounted upon the supporting rods, arms extending from the-cross heads with the arms of one cross head positioned upon opposite sides of the arms of the second cross head, rods connected with the arms and extending beneath the frame, and means carried by the frame for imparting vertical reciprocating movement to the cross heads. p

5. In a pump and actuating structure including a frame, cross heads slidably mounted in the frame, an arm extending from one cross head, arms extending from the second cross head upon opposite sides of the first mentioned arm, rods connected with the arms and extending beneath the 'frame,-and

eating movement and positioned upon opposite sides of the vertical center of said frame, arms extending inwardly of the cross heads, one cross head having a single arm and the second cross head "having a pair'of arins extendingupon opposite sides of the arms of the first mentioned cross head, rods connected with the arms and extending beneath the frame, and means carried by the frame for imparting reciprocating movement to the cross heads.

7. -A pump actuating mechanism including a frame, a cross head slidably mounted upon the frame and provided with a pair of relatively spaced arms, a second cross ,head slidably mounted upon the frame in spaced relation to the first cross head and provided with an arm extending to pass between the arms of the first cross head, the horizontal distance between the cross head inlet being less than the combined lengths of said arms.

8. A pump actuating mechanism includ ing a frame, a cross head slidably mounted upon the frame for vertical reciprocating movement, a second cross head slidably mounted upon the frame for vertical recip- In testimony whereof Iaffix my signature in presence of two witnesses.

\ GUSTAV W. JOHNSON. Witnesses: I

HENRY Lnnms, Jr., Jim. R. HARRIS. 

